: This Startup’s Battery Pack Charging Station Will Charge Your EV in 15 Mins #IndiaNEWS #Bengaluru Exponent Energy, a Bengaluru-based startup, has built a battery pack and charging station called

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This Startup’s Battery Pack Charging Station Will Charge Your EV in 15 Mins #IndiaNEWS #Bengaluru
Exponent Energy, a Bengaluru-based startup, has built a battery pack and charging station called E-pack and E-pump, respectively. The startup claims that together they unlock a 0 to 100% rapid charge within 15 minutes for all commercial vehicles, irrespective of the number of wheels. They’re doing this using affordable lithium-ion cells and delivering a warranty of 3,000 charging cycles.
Suffice to say, the ‘Flexible Energy Stack’ they are building could revolutionise the way Indians adopt electric vehicles (EVs). (Above image of co-founders Arun Vinayak and Sanjay Byalal alongside Exponents E-Pack)
It was co-founded by Arun Vinayak earlier this year, the founding partner and former Chief Product Officer at Ather Energy, and his former colleague there, Sanjay Byalal. Exponent Energy aims to bridge the relationship between battery cells and chargers to ensure there is less stress on EV batteries, while fully charging them in 15 minutes only.
To give you some context, regular charging solutions take anywhere between four to eight hours to deliver a full charge. Most batteries, meanwhile, last only three years or 1,000-1,200 charge cycles primarily because of the significant degradation they suffer during charging. Finally, the best fast-charging solutions in India are restricted to a few premium EVs, which perform a full charge within 50 minutes and have several caveats to consider.
“If you look at the energy flow in the EV sector, you have the power grid, chargers, battery, and motors. OEMs have figured out how to build great vehicles. They are able to buy batteries and motors and put all of this together and sell a vehicle. The charging partners on the other side are buying chargers and setting them up on the charging stations. But each side is working in isolation, which is why a certain battery and charger dont seem to work very well. There is an inherent lack of coordination in the EV market today between OEMs, battery makers and charging stations,� says Arun Vinayak, in a conversation with The Better India.
Rapid charging in the current Indian space didn’t work because it was done using bulky and expensive technology like LTO (lithium-titanate-oxide) or supercapacitors. With chargers feeding regular batteries more power than they can handle, it leads to severe battery degradation.
“We’ve simplified energy flow between the battery and charger. This unlocks 15 minute �rapid charging on a wide range of regular lithium-ion cells, making it affordable and scalable,� he adds.
The Exponent E-Pump (Image courtesy Exponent Energy)
How Does it Work?
Until now, the general consensus has been that if you charge an EV battery faster, it will accelerate the degradation process, which is true if youre taking the brute force approach of dumping as much energy into the battery.

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